Malicious PDF — malware analysis report

Static analysis result for SHA-256 d78404aaca91f308…

MALICIOUS

PDF

49.7 KB Created: 2020-08-06 13:38:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cfc95c0544c880052a99411bafc446b4 SHA-1: 337c579957532973f8d67a29f3dfe94f53660b4f SHA-256: d78404aaca91f308a2ba2d59dabdd82d3c22b63d8c8a605afab0115d3c9478e8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link that redirects to a malicious domain, identified as a redirector for SEO-based phishing. The document body, though heavily obfuscated, contains the same redirect URL. This suggests the primary goal is to trick the user into visiting a malicious site, likely for credential harvesting or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=dahua+cctv+camera+price+list+pdf In PDF document text
    • http://files.nysfcja.org/uploads/1/3/0/7/130738531/49cec1.pdfIn PDF document text
    • http://wijajol.ruthtenzerfeldman.com/uploads/1/3/1/3/131380058/getifasubi_walajuvojuboz.pdfIn PDF document text
    • http://files.wholesalesportsplus.com/uploads/1/3/1/3/131384573/dojepujorakugewifa.pdfIn PDF document text
    • http://jipidixit.dwarfhollowfarmstead.com/uploads/1/3/1/3/131383791/wonujelonebokun-dizimamud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8572/5857/files/47051073732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7400/9753/files/certified_management_accountant_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7753/2822/files/89307405068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2232/6696/files/pifafirepewetadebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1195/6126/files/xujejiwewomezavixot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7291/2549/files/tilaxozowasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5763/5743/files/40013627104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1820/6887/files/vibadijezejudajori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8652/8155/files/jukadivi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007773.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7773 5452 bytes
SHA-256: 44f5678e73c7a6693309661a438768a7026f216bdf8866d8c87902af7146d836
font_01_sfnt_off000089dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89DD 15672 bytes
SHA-256: d1e42598c4275744593b1f563857533294e2014615db992b8a301a4c2ed2187c

Open this report in the interactive analyzer, or submit your own file for analysis.